sugar per root jn 1908 
Average ounces of 
1916] PRITCHARD—SUGAR-BEET BREEDING 449 
ences between families. Tables XXVII-XXXII (summarized on 
p. 464) and figs. 31-36 show whether such family characters as 
percentage of sugar, average root weight, and average sugar 
content of the root are transmitted from generation to generation. 
Tables XXVII and XXVIII were compiled from the same data. 
Average ounces of sugar per root in 19/0 
-“ ©» © © & & & & &©& & © & & © © & & © & MW 4 
2.05% a ~ ~ w © s pik * ~~ bes “ + © on 4% YD 
225 | | | } 
[ : a a 25 FOES 
245 yi ho “al * 
265 | 
Fic. 33.—To accompany table XXIX 
Table XXVII shows the relationship between the average per- 
centages of sugar in two consecutive generations of beet families 
when no checks were used; table XXVIII shows the same rela- 
tionship when every alternate row was employed as a check, and 
the value of each family was determined by dividing its percent- 
age of sugar by the average 
percentage of sugar of its cil ca esac 
two contiguous checks. The : 23.32 345 8 3 
families used in compiling ee 2 BS 3 
data for tables XXIX- #¥§/ “a Z 
XXXII were planted with- re 
out checks. aS 2 
No correlation is shown Fic. 34.—To accompany table XXX 
in tables XXVII and XXVIII 
between the percentages of sugar in two consecutive generations 
of a beet family. Even when every alternate row was planted as 
a check to offset the effects of the inequalities of the soil, the 
Coefficient of correlation was only 0.089, while its sepa error 
was 0.076. 
Tables XXIX-XXXII furnish no evidence of ids 
between average root weight or average quantity of sugar in suc- 
cessive generations, nor between average root weight in one genera- 
tion and percentage of sugar in the following generation. 
